STU-GTIIT光学论坛（No.21）
报告题目: Nonlinear Dynamics in Co-magnetometers（全英报告）
报 告 人：俞振华 (Sun Yat-sen University)
报告时间：2024年5月14日 17:00
报告地点：at Room 202 in the building of college of science, STU
报告摘要:
Nuclear spins of noble atoms, such as He and Xe, enjoy long coherence time. They are ideal physical systems realizing high precision magnetometers which are vital for experiments in search of beyond standard model physics. Multi-magnetometers are employed to locally suppress bias field drift and even form a global network aimed to measure phenomena of large spatial scale. We study a new set-up of comagnetometers composed of two identical magnetometers placed in dual bias magnetic fields; the two magnetometers are coupled together via a feedback magnetic field. We find the system exhibits rich nonlinear dynamics, including limit cycles,quasi-periodic orbits and chaos. We discuss potential applications of the phenomena in precision measurement.
报告人简介:
Professor Zhenhua Yu received his bachelor's degree from Fudan University and his PhD from University of Illinois at Urbana-Champaign. Afterwards he worked as a postdoctoral researcher at the Niels Bohr Institute and the Ohio State University. In 2012, he became an associate researcher at the Institute for Advanced Study at Tsinghua University and a professor at Sun Yat-sen University in 2016. Prof. Yu is mainly engaged in theoretical research on cold atom physics and explores the application of cold atom systems in precision measurement. His research was funded by the National Natural Science Foundation of China's Excellent Youth Fund Project.
欢迎全校师生参加！
理学院
2024年5月7日
